I dont know if you have already answered this, might have missed it on the read through, but are you using 1 in. over flows as well as 1 in. returns? Awesome job, looks great!
Considering the size of your system I understand why an external pump makes a lot of sense. How big of a pump are you going to upgrade to?
Have you had any issues balancing the flow to your lower tanks vs the flow to your upper tanks?
I am looking forwards to seeing your DE implementation! I think you will really appreciate the DE... but it is easy to get spoiled quickly and forget what cloudy water looks like.I still haven't changed the original DE powder on mine and it is still going strong!
This setup is so awesome.
I dont know if you have already answered this, might have missed it on the read through, but are you using 1 in. over flows as well as 1 in. returns? Awesome job, looks great!